You only have until Sunday to catch one of the finest performances in town. For the past two years or so, Jenn Harris has been absolutely fantastic in “Silence! The Musical.” Because the show is off-Broadway, she hasn’t gotten the above-board recognition she deserves but trust me: As FBI agent Clarice Starling, Harris is one for the ages. She completely nails Jodie Foster’s mannerisms and diction, while adding twists that are all her own. Harris is a gifted mimic and physical comedian, as well as a wicked improviser — when I revisited the show a couple of weeks ago, she managed to crack up costar Howard Kaye.

Leaving on Sunday as well is Harris’ worthy foil, David Garrison, who sings Hannibal Lecter’s profane ballad “If I Could Smell Her C–t” with the creamy tones of the Broadway balladeer he is.

The night I attended the show again, it was sold out. I’m glad to see it continue to do so well, having turned into one of the most unlikely hits of the past decade. Hunter Bell’s book has even incorporated a few updated jokes — there’s a quick reference to “Newsies” and one to faulty 4G coverage.

Adding to the cheeseball delights is the show’s current location, which couldn’t be any more appropriate: The Elektra Theatre is located on the second floor of a multi-story “chills” emporium — there’s also a fright-themed restaurant and a spook walk. And of course, this is on a stretch of the theater district, on 8th Ave. and 43rd St., that somehow still maintains a whiff of its seedy past. Just perfect.